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C. F. WALTHER.

NON-CONDUGTING LINING FOR STOVBS 0R HEATERS. No.v 472,414. l Patented Apr. 5, 1892.

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IINTTED STATES CHARLES F. WALTHER, OF BUFFALO, S. JEVETT da OO.,

PATENT OEETCEQ NEW YORK, ASSIGNOR TO SHERMAN OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 472,414, dated April 5, 1892.

Serial No. 379,110. (No model.)

To all whom it muy concern:

Be it known that I, CHARLES F. WALTHER, a citizen of the United States, residing at Buffalo, in the county -ot' Erie and State of New York, have invented certain new and useful Improvements in Non-ConductingLinings for Stoves and Heaters, of which the following is a specification.

This invention has for its object to provide 1o a non-conductinglining for the Iiues ot' stoves and heaters, through which pass the hot products ot combustion, such lining being usually applied to the inner faces of the outside plates of the [lues and serving to prevent the loss of heat by conduction and radiation and the buckling or warping of the outer plates, and hence the openingof joints.

The invention consists of a sheet of asbestus or similar non-conducting lining and a metallic rack or holder separable therefrom covering the non-conducting lining and serving to hold it in place and protect it when the lues are raked or cleaned out.

In the drawings wherein my invention is illustrated, Figure 1 is an inside face view of the outside plate or shell of a cooking-stove or range having my invention applied thereto. Fig. 2 is a cross-section of the same, show-` ing other parts of the stove. Fig. 3 is a face view showing another form of the invention.

Referring to Fig. 2, A represents the oven of a cooking stove or range; B, the bottom flue; O, the side iue, and D one of the outside shells or plates of the stove.

Against the inside of the shell or plate D is placed a lining of sheet-asbestus E or other suitable non-conducting material of a nonfriable nature and which may be made into sheets. This lining is held in place and protected by a separable metallic rack or holder, which as preferably constructed consists ot a thin cast-iron plate F, Fig.' l, perforated, as at f, to reduce its weight and the amount of metal contained therein. 'It is arranged over the lining E and held in place by the bolts G, one at each corner of the plate being sufficient, which pass through the lining and the outside plate. It forms a ready means for securing the lining against the flue-wall, and, besides, it

protects the lining, which otherwise would be 5o liable to become torn when the 'tine-walls are raked to clean ott the accumulated soot and ashes, the plate presenting a smooth surface, which may be easily and rapidly cleaned.

Instead of the cast-metal plate F,I may use a rack or holder of woven wire H, as illustrated in Fig. 3; but I prefer the plate, as it is less expensive, lasts longer, and presents a surface which can be more easily cleaned.

It will be observed that vwhen using the 6o separate metallic holder or rack it is necessary to punch but four holes for the bolts Gr through the heavy plate which constitutes the outer shell of the stove, the holder or rack being sufficiently stiff to hold the lining in place between the bolts.

The non-conducting lining and rack described are not only adapted to be applied to stoves in which it is desired there should be no radiation of heat, such as cooking-stoves, 7o but also to heaters of those kinds in which it is desirable to confine all the heat within the outer shell or casing, a heater of this character being shown in Patent No. 423,759 to J. J. Graves, dated March 18, 1890.

I am aware that it is not new to make the doors of furnaces and other heaters with linings or iillings of non-conducting substances, such as tire-clay, and also that it is not new to line the tire-pots or combustion-chambers of 8o stoves with non-conducting material, which is secured in various ways to the metallic supporting-plates which constitute the backings of the walls of such lire-chambers; but all of such constructions differ very materially from 8 5 my invention, where the non-conducting lining-sheet is of a non-friable nature and both it and the metallic confining holder or rack are separable from each other and also from the flue-wall to which they are to be secured, 9o and, further, where the metallic rack or holder serves not as a backing for the non-conducting lining,but as a fastening or coveringtherefor.

What I claim as my invention is- 1. In a stove or heater, the combination, with the Wall of a Hue, of a sheet of non-triable non-conducting lining material E, placed against the flue-Wall, and aseparable metallic against the face 0f the lining, Substantially holder' or rack secured to the due-Wall against as set forth. I0 the face of the lining', substantially as set Intesbilnonywhereoflafxmysgnaturein forth. presence of two Witnesses.

2. In a stove 0r heater, the combination, CHARLES F. TALTHER with the wall of a flue,0f the nG11-conducting` Vitnesses: lining material E, placed against the ue-\vall, ROBERT H. MONTGOMERY,

and the separable east-metal plate bolted ROBT. LCANEY. 

